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-rw-r--r--test/lisp/subr-tests.el10
1 files changed, 10 insertions, 0 deletions
diff --git a/test/lisp/subr-tests.el b/test/lisp/subr-tests.el
index 3c5dbcdbd76..a3b08e96971 100644
--- a/test/lisp/subr-tests.el
+++ b/test/lisp/subr-tests.el
@@ -271,5 +271,15 @@ indirectly `mapbacktrace'."
(let ((frame-lists (subr-test--frames-1 'subr-test--frames-2)))
(should (equal (car frame-lists) (cdr frame-lists)))))
+(ert-deftest subr-tests--string-match-p--blank ()
+ "Test that [:blank:] matches horizontal whitespace, cf. Bug#25366."
+ (should (equal (string-match-p "\\`[[:blank:]]\\'" " ") 0))
+ (should (equal (string-match-p "\\`[[:blank:]]\\'" "\t") 0))
+ (should-not (string-match-p "\\`[[:blank:]]\\'" "\n"))
+ (should-not (string-match-p "\\`[[:blank:]]\\'" "a"))
+ (should (equal (string-match-p "\\`[[:blank:]]\\'" "\N{HAIR SPACE}") 0))
+ (should (equal (string-match-p "\\`[[:blank:]]\\'" "\u3000") 0))
+ (should-not (string-match-p "\\`[[:blank:]]\\'" "\N{LINE SEPARATOR}")))
+
(provide 'subr-tests)
;;; subr-tests.el ends here